Effect of running velocity on external mechanical power output

Fukunaga, Tetsuo; Matsuo, Akifumi; Yuasa, Kagemoto; Fujimatsu, Hiroshi; Asahina, Kazuo

doi:10.1080/00140138008924726

Cited by 34 publications

(17 citation statements)

References 5 publications

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“…The values of We, W and Wwb obtained with film analysis and a multi-segment model are in agreement with data of previous experiments (5,7,11). A strong linear relationship between the We and the velocity was also reported by the same authors.…”

Section: Resultssupporting

confidence: 92%

Mechanical Energy Assessment with Different Methods during Running

Belli

Avela²,

Komi³

1993

Int J Sports Med

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In order to compare mechanical measurements obtained with force platforms, film analysis and a kinematic arm, a sprint runner and a long distance runner were asked to run at different constant velocities ranging from 2.5 m.s-1 to 5.5 m.s-1. The external (EW) mechanical work reflected in the motion of the center of mass (CM) of the subject was computed using force platforms, film analysis and a kinematic arm. The differences observed on EW computations ranged from 12.3% +/- 2.5% (film analysis vs kinematic arm) to 1.4% +/- 1.8% (kinematic arm vs force platforms). These differences could be explained by (i) film analysis inaccuracy and (ii) vertical kinematic arm oscillations. Furthermore, the data obtained with a multisegment model confirm that the large discrepancy found in the literature on running efficiency is not mainly due to the accuracy of the force and/or displacement measurements, but to the different methods of estimation of the mechanical power produced by the muscles. It is suggested that the kinematic arm principle can be applied successfully for computation of CM displacements and CM energy changes during running.

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Section: Resultssupporting

confidence: 92%

Mechanical Energy Assessment with Different Methods during Running

Belli

Avela²,

Komi³

1993

Int J Sports Med

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“…Kuitunen et al (13) reported that horizontal forces significantly increased with running velocity in male sprinters. In addition, Fukunaga et al (10) reported that the horizontal component of work increased with running velocities greater than 6.0 mÁs 21 . It would seem that the results of the present study are similar to those in the bulk of the literature supporting the contention that increasing velocity from moderate to maximum sprint velocity is more dependent on horizontal than on vertical force production.…”

Section: Discussionmentioning

confidence: 97%

Effects of Running Velocity on Running Kinetics and Kinematics

Brughelli

Cronin

Chaouachi

2011

Journal of Strength and Conditioning Research

139

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“…Cavagna et al (1971) have shown that total power output increases with the speed of running and recorded 2500 to 3000 W at a speed of 9.5 m/s. Fukunaga et al (1980) also found that total power increased with running speed and obtained a mean value of 55 W/kg BM in sprinters. If the power output in the forward direction was about 70% of total external power, as was calculated by Fukunaga et al (1980), then the forward direction power values calculated from their data were close to the IPP values reported in the present study.…”

Section: -mentioning

confidence: 90%

“…Fukunaga et al (1980) also found that total power increased with running speed and obtained a mean value of 55 W/kg BM in sprinters. If the power output in the forward direction was about 70% of total external power, as was calculated by Fukunaga et al (1980), then the forward direction power values calculated from their data were close to the IPP values reported in the present study. According to Sargeant et al (1981), MP values are 50 to 60% of the IPP during cycling.…”

Section: -mentioning

confidence: 90%